This can be repeated many times before the editor crashes without any messages and other programs with the video driver crashes too. Because out-of-memory.
This is similar to [Link Removed].
This was reported and tested in 4.24.3 (CL-11590370). This was reproduced in 4.25 (CL-13144385) and Main 4.26 (CL-13230104)
Results: Memory usage increased by 200-500MB each time you Simulate
Expected: Return to previous value of used memory by editor
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-92869 in the post.